US7821975B2 - Establishing radio link control in wireless communication networks - Google Patents

Establishing radio link control in wireless communication networks Download PDF

Info

Publication number
US7821975B2
US7821975B2 US11/149,875 US14987505A US7821975B2 US 7821975 B2 US7821975 B2 US 7821975B2 US 14987505 A US14987505 A US 14987505A US 7821975 B2 US7821975 B2 US 7821975B2
Authority
US
United States
Prior art keywords
radio link
link control
reset procedure
reset
initiating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US11/149,875
Other languages
English (en)
Other versions
US20060281413A1 (en
Inventor
Richard C. Burbidge
Padmaja Putcha
Ramesh Sudini
Hui Zhao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Google Technology Holdings LLC
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36651374&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US7821975(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Inc filed Critical Motorola Inc
Priority to US11/149,875 priority Critical patent/US7821975B2/en
Assigned to MOTOROLA, INC. reassignment MOTOROLA, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PUTCHA, PADMAJA, BURBIDGE, RICHARD C., SUDINI, RAMESH, ZHAO, HUI
Priority to PCT/US2006/013904 priority patent/WO2006135482A1/en
Priority to ES09008246T priority patent/ES2393686T3/es
Priority to EP06750066A priority patent/EP1894360A1/en
Priority to EP09008246A priority patent/EP2107851B1/en
Priority to CN2006800202863A priority patent/CN101204049B/zh
Priority to BRPI0610880-6A priority patent/BRPI0610880A2/pt
Priority to TW095114818A priority patent/TWI387237B/zh
Priority to TW101135165A priority patent/TWI467953B/zh
Priority to FI20060545A priority patent/FI123841B/fi
Priority to ARP060102436A priority patent/AR053897A1/es
Publication of US20060281413A1 publication Critical patent/US20060281413A1/en
Priority to US12/887,221 priority patent/US8483109B2/en
Publication of US7821975B2 publication Critical patent/US7821975B2/en
Application granted granted Critical
Assigned to Motorola Mobility, Inc reassignment Motorola Mobility, Inc ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MOTOROLA, INC
Assigned to MOTOROLA MOBILITY LLC reassignment MOTOROLA MOBILITY LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: MOTOROLA MOBILITY, INC.
Assigned to Google Technology Holdings LLC reassignment Google Technology Holdings LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MOTOROLA MOBILITY LLC
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present disclosure relates generally to wireless communications, and more particularly to establishing and resetting radio link control in wireless communication networks, for example, in Universal Mobile Telecommunications System (UMTS) wireless communication networks, and methods.
  • UMTS Universal Mobile Telecommunications System
  • the 3GPP Radio Link Control (RLC) protocol is a layer 2 retransmission protocol used to guarantee delivery of data over lossy radio channels.
  • Higher layer service data units (SDUs) are segmented into fixed size RLC protocol data units (PDUs) prior to transmission over the air.
  • the RLC protocol data unit (PDU) size is configured by the network when a radio bearer is first established. This allows the network to select an optimal RLC PDU size.
  • the RLC entity In 3GPP Release 99, if the network wants to change the RLC PDU size after the radio bearer has been established, the RLC entity must be “re-established”. RLC re-establishment however results in the loss of all data currently being transmitted in the uplink and downlink. For this reason, the typical RLC PDU size, for example 336 bits, used by networks is typically not changed during the life of the radio bearer.
  • the 3GPP Release 5 specification introduced High Speed Downlink Packet Access (HSDPA), which provides faster downlink (DL) data rates.
  • HSDPA High Speed Downlink Packet Access
  • RLC PDU sizes for example, a 600 bit PDU size
  • UE user equipment
  • Radio Link Control (RLC) behavior however, a change to the downlink RLC PDU size results in loss of data on both the downlink and uplink, even though the uplink RLC PDU size remains unchanged.
  • 3GPP Release 5 introduced a “single-sided RLC re-establishment” procedure that allows only the downlink side of the RLC entity to be re-established without adversely affecting data on the uplink.
  • the “single-sided RLC re-establishment procedure” also allows only the uplink side of the RLC entity to be re-established without adversely affecting data on the downlink although this is a less likely scenario.
  • the single-sided RLC re-establishment procedure is defined in the 3GPP specification at 25.331v5.9.0 and 25.322v5.8.0.
  • the single-sided RLC re-establishment introduced in Release 5 introduces problematic interactions with the RLC reset procedure.
  • the RLC reset procedure involves signaling and synchronizing hyper frame numbers (HFNs), which are used for de/ciphering data blocks, between RLC peer entities.
  • HFNs hyper frame numbers
  • the RLC reset procedure is described in the 3GPP specification at 25.322. The problem occurs when a PDU size change occurs during an RLC reset procedure.
  • the interaction between the RLC reset and the single-sided RLC re-establishment can result in peer RLC entities having a different HFN, resulting in corrupt data.
  • FIG. 1 is a prior art scenario where the interaction between the RLC reset and single-sided RLC re-establishment procedures is problematic.
  • a condition occurs within the user equipment (UE) that triggers an RLC reset procedure.
  • the RLC reset may be invoked when a PDU is retransmitted the maximum number of times.
  • the RLC entity in the UE sends a RESET PDU containing the current value (equal to x) of the uplink hyper frame number (HFN).
  • HFN uplink hyper frame number
  • an RLC entity in the network receives the RESET PDU and performs a reset.
  • the RLC entity in the UE waits for the RESET ACK until a timer RST expires.
  • the network initiates a downlink RLC PDU size change before the UE RLC entity receives the RESET ACK.
  • the network sends a Reconfiguration message informing the UE of the downlink RLC PDU size change.
  • the UE receives the Reconfiguration message before receiving the RESET ACK.
  • the UE performs the downlink only re-establishment, setting the downlink HFN value to equal START, and sending a Reconfiguration Complete message containing the START value.
  • the START value is calculated as the highest HFN used by all radio bearers in the UE so its value may not be derived from the HFN of the RLC entity being re-established.
  • the network performs a single sided RLC re-establishment setting the DL HFN to the START value.
  • the UE if the Timer RST expires before the UE RLC entity receives the RESET ACK PDU, the UE re-transmits the RESET PDU.
  • the UE is required to transmit an identical PDU containing the UL HFN value x sent originally.
  • the network receives the RESET PDU but takes no action (since is has already received this RESET PDU) except to resend the RESET ACK PDU containing the DL HFN value (equal to y) sent previously.
  • the UE receives the RESET ACK PDU and performs the RLC reset actions, setting the downlink HFN to the value (y+1).
  • the UE has the DL HFN set to y+1 and the network has the DL HFN set to the START value.
  • the downlink HFN of the UE and UTRAN are thus incorrectly aligned, which will result in data corruption.
  • FIG. 1 is a prior art process for establishing and resetting radio link control in a wireless communication network.
  • FIG. 2 is a process for establishing and resetting radio link control in a wireless communication network.
  • FIG. 3 is schematic block diagram of an exemplary mobile communication terminal.
  • FIG. 2 illustrates a process 200 for establishing and resetting radio link control in a wireless communication device communicating with a Radio Access Network.
  • the RAN generally includes a base station controller (BSC) and multiple base transceivers stations (BTS) of a wireless communication network.
  • An exemplary RAN is the Universal Terrestrial Radio Access Network (UTRAN) for Universal Mobile Telecommunications System (UMTS) W-CDMA among other existing and future radio access networks.
  • the UE is a fixed-based or mobile communication terminal, for example, a cellular communication handset, personal digital assistant (PDA) or a cellular communication card for use with a portable computing device.
  • PDA personal digital assistant
  • the disclosure is not limited however to any particular radio access network or mobile communication terminal.
  • the RAN is a UTRAN 202 and the wireless communication device is user equipment (UE) 204 .
  • UE user equipment
  • a condition occurs within the user equipment (UE) 204 that triggers a radio link control (RLC) reset procedure.
  • the RLC reset procedure may be invoked, for example, when a protocol data unit (PDU) is retransmitted some maximum number of times, or for some other reason.
  • PDU protocol data unit
  • the particular event initiating the RLC reset procedure in the UE is inconsequential.
  • the UE 204 sends a RESET PDU on the uplink (UL) to the radio access network 202 .
  • HFN uplink hyper frame number
  • the RESET PDU also contains a reset sequence number (RSN) that is set to the value used in the previous reset procedure incremented by 1. In the case of the first reset procedure to have occurred since the RLC entity was established or re-established, the RSN value is set to zero.
  • the reset sequence number allows the RESET and RESET ACK messages of one RLC reset procedure to be distinguished from those of another RLC reset procedure.
  • FIG. 3 is a partial schematic block diagram of exemplary user equipment (UE) 300 comprising a radio link control (RLC) entity 310 communicably coupled to a transceiver 320 and controller 330 .
  • An RLC transmitting side 312 of the RLC entity is communicably coupled to a radio transmitting entity 322
  • an RLC receiving side 314 of the RLC entity is communicably coupled to a receiving entity 324 .
  • the RLC transmitting side 312 of the RLC entity sends the RESET PDU to the radio access network via a radio transmitting entity 322 under control of the controller 330 .
  • the UE starts an RLC reset timer 316 when the RLC reset procedure is initiated. If the timer expires before the UE receives a reset acknowledgement from the RAN, the UE resends the RESET PDU and re-starts the timer. The existence or running of the RLC reset timer thus implies an ongoing RLC reset procedure.
  • an RLC entity in the RAN 202 receives the RESET PDU and the current HFN values and performs a reset. This includes discarding both uplink and downlink data currently within the RLC entity, setting the current uplink (UL) HFN to the value (x+1), returning a RESET acknowledge (ACK) protocol data unit (PDU) containing the current downlink HFN (equal to y) to the UE 204 , and then setting the current downlink (DL) HFN to (y+1).
  • ACK RESET acknowledge
  • PDU protocol data unit
  • the UE 204 awaits the RESET ACK from the RAN 202 while the RLC reset timer is running, as discussed above.
  • the RAN 202 initiates a downlink (DL) radio link control (RLC) protocol data unit (PDU) size change before the UE RLC entity receives an acknowledgement of the RLC reset from the RAN.
  • the RAN sends a reconfiguration message informing the UE of the downlink RLC PDU size change.
  • the UE 204 receives the reconfiguration message having the DL PDU size change request before receiving the RESET ACK.
  • the RLC reset acknowledgement may be delayed by network traffic, loss over the radio channel, or for some other reason.
  • the RAN may initiate a downlink PDU size change in a single sided RLC re-establishment procedure
  • the RAN may initiated a PDU size change on the uplink without adversely affecting data on the downlink.
  • the RAN 202 may alternatively initiate an uplink PDU size change.
  • the UE 204 performs the downlink only re-establishment, setting the downlink HFN value to equal START, and sending a reconfiguration complete message containing the HFN START value to the RAN 202 .
  • the HFN START value is calculated by the UE as the highest HFN used by all RLC entities in the UE, so the HFN value may not be derived from the HFN of the RLC entity being re-established.
  • the RAN 202 after having received the reconfiguration complete message containing the START value from the UE 204 , the RAN 202 performs a single sided RLC re-establishment setting the DL HFN to the START value.
  • the message sent from the RAN 202 to UE 204 to change the downlink RLC PDU size and the response message from the UE to the network are radio resource control (RRC) messages.
  • RRC radio resource control
  • FIG. 3 illustrates an RRC entity 340 communicably coupled to the transmitter and receiver entities of the transceiver 320 and to the controller 330 .
  • the RLC reset procedure is restarted after the single sided re-establishment has occurred.
  • Re-initiating the RLC reset procedure basically involves sending a new RESET PDU containing the HFN set to the current value (instead of the same value as used in the previous reset procedure that was not completed) containing an incremented reset sequence number, and restarting the reset timer.
  • the full RLC reset procedure occurs immediately after the single sided re-establishment procedure is completed to ensure that the HFN of the UE and RAN are synchronized.
  • the UE 204 sends a RESET PDU on the uplink (UL) to the radio access network 202 .
  • the reset sequence number sent in the RESET PDU must be incremented compared to that used in the previous RLC reset procedure.
  • the reset sequence number is not set back to zero as would normally be the case following a re-establishment.
  • the UE sets a reset sequence number (RSN) of the radio link control reset protocol data unit (RESET PDU) to a value of a last used reset sequence number incremented by one.
  • RSN reset sequence number
  • REET PDU radio link control reset protocol data unit
  • the RLC entity receiving a RESET PDU (RAN 202 in FIG. 2 ) is required to perform the reset function if that RESET PDU is the first one received since RLC establishment or re-establishment, or if the reset sequence number received in the RESET PDU is different from the RSN received in the last received RESET PDU. Therefore, in FIG. 2 , at step 270 , the RAN 202 will act on the received RESET PDU as it is the first one received following a re-establishment procedure.
  • the RAN 202 will receive the RESET PDU sent at 210 after the RLC re-establishment and that it will act on this RESET PDU. If the RESET PDU that is sent at 260 has the same reset sequence number (RSN) as the RESET PDU sent at step 210 then the RAN 202 will not act on this PDU at step 270 . According to the present disclosure, if the UE increments the reset sequence number (rather than using a value zero) after a single sided re-establishment, then it ensures that the RLC entity receiving the RESET PDU (RAN 202 in FIG. 2 ) always acts on this RESET PDU.
  • RSN reset sequence number
  • the UE 204 receives the RESET ACK PDU and acts on it by setting the DL HFN to value (z+1). Now the RAN 202 and the UE 204 have the same value (x+1) for the UL HFN and the same value (z+1) for the DL HFN and so ciphered data transfer can occur in both uplink and downlink directions without corruption of data.
  • the radio link control entity 310 re-initiates a radio link control reset procedure when the receiver entity 324 receives, from the RNC, a message containing an instruction to change a downlink protocol data unit size during an ongoing radio link control reset procedure. According to this procedure, the radio link control entity aborts the ongoing radio link control reset upon re-initiating the radio link control reset procedure. In one embodiment, the radio link control entity re-initiates the radio link control reset procedure only if the radio link control reset procedure is not acknowledged before re-establishing radio link control.
  • the radio link control reset timer 316 is restarted upon re-initiating the radio link control reset procedure after re-establishing radio link control. As discussed above, the radio link control reset procedure is re-initiated by incrementing a last used reset sequence number of a radio link control reset protocol data unit by one.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
US11/149,875 2005-06-10 2005-06-10 Establishing radio link control in wireless communication networks Active 2028-07-17 US7821975B2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US11/149,875 US7821975B2 (en) 2005-06-10 2005-06-10 Establishing radio link control in wireless communication networks
PCT/US2006/013904 WO2006135482A1 (en) 2005-06-10 2006-04-13 Establishing radio link control in wireless communication networks
ES09008246T ES2393686T3 (es) 2005-06-10 2006-04-13 Establecimiento de control de radio enlace en redes de comunicaciones inalámbricas
EP06750066A EP1894360A1 (en) 2005-06-10 2006-04-13 Establishing radio link control in wireless communication networks
EP09008246A EP2107851B1 (en) 2005-06-10 2006-04-13 Establishing radio link control in wireless communication networks
CN2006800202863A CN101204049B (zh) 2005-06-10 2006-04-13 建立和复位无线链路控制的方法和相关的通信终端
BRPI0610880-6A BRPI0610880A2 (pt) 2005-06-10 2006-04-13 estabelecimento de controle de enlace de rádio em redes de comunicação sem fio
TW101135165A TWI467953B (zh) 2005-06-10 2006-04-26 於無線通信網路中建立射頻鏈結控制
TW095114818A TWI387237B (zh) 2005-06-10 2006-04-26 於無線通信網路中建立射頻鏈結控制
FI20060545A FI123841B (fi) 2005-06-10 2006-06-02 Radiolinkkiohjauksen muodostaminen langattomissa viestintäverkoissa
ARP060102436A AR053897A1 (es) 2005-06-10 2006-06-09 Establecimiento de control de radioenlace en redes de comunicaciones inalambricas
US12/887,221 US8483109B2 (en) 2005-06-10 2010-09-21 Establishing radio link control in wireless communication networks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/149,875 US7821975B2 (en) 2005-06-10 2005-06-10 Establishing radio link control in wireless communication networks

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/887,221 Continuation US8483109B2 (en) 2005-06-10 2010-09-21 Establishing radio link control in wireless communication networks

Publications (2)

Publication Number Publication Date
US20060281413A1 US20060281413A1 (en) 2006-12-14
US7821975B2 true US7821975B2 (en) 2010-10-26

Family

ID=36651374

Family Applications (2)

Application Number Title Priority Date Filing Date
US11/149,875 Active 2028-07-17 US7821975B2 (en) 2005-06-10 2005-06-10 Establishing radio link control in wireless communication networks
US12/887,221 Active 2026-08-21 US8483109B2 (en) 2005-06-10 2010-09-21 Establishing radio link control in wireless communication networks

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/887,221 Active 2026-08-21 US8483109B2 (en) 2005-06-10 2010-09-21 Establishing radio link control in wireless communication networks

Country Status (9)

Country Link
US (2) US7821975B2 (zh)
EP (2) EP2107851B1 (zh)
CN (1) CN101204049B (zh)
AR (1) AR053897A1 (zh)
BR (1) BRPI0610880A2 (zh)
ES (1) ES2393686T3 (zh)
FI (1) FI123841B (zh)
TW (2) TWI467953B (zh)
WO (1) WO2006135482A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070258489A1 (en) * 2006-05-03 2007-11-08 Innovative Sonic Limited Method and apparatus of handling variable of RLC reset procedure during receiver-side-only re-establishment in wireless communications system
US20110009073A1 (en) * 2005-06-10 2011-01-13 Motorola, Inc. Establishing radio link control in wireless communication networks
US8902833B2 (en) 2010-12-23 2014-12-02 Qualcomm Incorporated System and method for performing a radio link control (RLC) reset in a downlink multipoint system
USRE48291E1 (en) * 2008-06-20 2020-10-27 Lg Electronics Inc. Method of delivering a PDCP data unit to an upper layer

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI398118B (zh) * 2005-09-21 2013-06-01 Innovative Sonic Ltd 無線通訊系統重建發射邊處理控制協定資料單元的方法及裝置
KR100905965B1 (ko) 2005-10-04 2009-07-06 엘지전자 주식회사 무선통신 시스템에서의 ｒｌｃ 재연결 방법
EP1906602B1 (en) * 2006-09-28 2010-03-24 Nokia Siemens Networks Gmbh & Co. Kg Controlling congestion detection in HSDPA systems
US8611303B2 (en) * 2007-02-02 2013-12-17 Qualcomm Incorporated Seamless context switching for radio link protocol
MY149326A (en) 2007-02-02 2013-08-30 Interdigital Tech Corp Method and apparatus for controlling a handover between utra r6 cells and r7 cells
US8130706B2 (en) * 2007-03-16 2012-03-06 Interdigital Technology Corporation Wireless communication method and apparatus for supporting reconfiguration of radio link control parameters
US8031689B2 (en) * 2007-05-18 2011-10-04 Innovative Sonic Limited Method and related apparatus for handling re-establishment of radio link control entity in a wireless communications system
KR101525252B1 (ko) * 2007-12-31 2015-06-02 삼성전자주식회사 무선 통신 시스템에서의 하이퍼 프레임 넘버 비동기 방지 방법
JP4976440B2 (ja) * 2008-05-19 2012-07-18 創新音▲速▼股▲ふん▼有限公司 接続を再確立する方法及び通信装置
KR20140105037A (ko) * 2008-08-08 2014-08-29 인터디지탈 패튼 홀딩스, 인크 Ｍａｃ 리셋 및 재구성
CN101873193A (zh) * 2009-04-27 2010-10-27 中兴通讯股份有限公司 无线链路层状态包的发送方法
KR101673183B1 (ko) * 2009-06-16 2016-11-17 삼성전자주식회사 무선통신시스템에서 타이머 보상을 통한 데이터 관리방법 및 장치
US9167472B2 (en) * 2011-07-01 2015-10-20 Qualcomm Incorporated Methods and apparatus for enhanced UL RLC flow control for MRAB calls
US9232482B2 (en) 2011-07-01 2016-01-05 QUALOCOMM Incorporated Systems, methods and apparatus for managing multiple radio access bearer communications
US9591593B2 (en) 2011-07-22 2017-03-07 Qualcomm Incorporated Systems, methods and apparatus for radio uplink power control
US9930569B2 (en) 2011-08-04 2018-03-27 Qualcomm Incorporated Systems, methods and apparatus for wireless condition based multiple radio access bearer communications
US9686046B2 (en) 2011-09-13 2017-06-20 Qualcomm Incorporated Systems, methods and apparatus for wireless condition based multiple radio access bearer communications
US8873535B2 (en) 2011-09-26 2014-10-28 Qualcomm Incorporated Systems, methods and apparatus for retransmitting protocol data units in wireless communications
GB2489772B (en) * 2012-02-06 2014-10-08 Broadcom Corp Apparatus, method and computer program for use in a communication device
US10135892B2 (en) 2015-07-28 2018-11-20 Google Llc Independent control of interactive streaming media

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010029188A1 (en) 2000-04-10 2001-10-11 Sinikka Sarkkinen Method and arrangement for maintaining synchronization in association with resetting a communication connection
US20030206534A1 (en) 2002-05-03 2003-11-06 Wu Frank Chih-Hsiang Scheme to handle radio link control service data units upon reception of a radio link control reset or reset acknowledge protocol data unit in a wireless communication system
US20040153896A1 (en) 2003-02-04 2004-08-05 Sung-Kyung Jang Failsafe RLC reset method for a wireless communication system
US20040208160A1 (en) * 2003-03-31 2004-10-21 Dragan Petrovic Method of retransmission protocol reset synchronisation
US6987981B2 (en) * 2001-11-13 2006-01-17 Asustek Computer Inc. Robust RLC reset procedure in a wireless communication system
US20080101608A1 (en) * 2006-10-25 2008-05-01 Innovative Sonic Limited Method and apparatus for handling protocol error in a wireless communications system
US7554963B2 (en) * 2002-08-13 2009-06-30 Innovative Sonic Limited Method for handling data discard timer after an RLC reset or re-establishment in a wireless communications system
US20090168751A1 (en) * 2007-12-31 2009-07-02 Samsung Electronics Co., Ltd. Method to prevent hyper frame number de-synchronization in a wireless communication system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040203623A1 (en) * 2002-05-03 2004-10-14 Wu Frank Chih-Hsiang Scheme to retransmit radio resource control messages during a radio link control reset in a wireless communication system
DE10252535A1 (de) * 2002-11-08 2004-05-27 Philips Intellectual Property & Standards Gmbh Vorrichtung und ein Verfahren zur Übertragung von Datenpaketen verschiedener Verbindungen an einen Empfänger
US7821975B2 (en) * 2005-06-10 2010-10-26 Motorola, Inc. Establishing radio link control in wireless communication networks

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010029188A1 (en) 2000-04-10 2001-10-11 Sinikka Sarkkinen Method and arrangement for maintaining synchronization in association with resetting a communication connection
US7171224B2 (en) * 2000-04-10 2007-01-30 Nokia Corporation Method and arrangement for maintaining synchronization in association with resetting a communication connection
US6987981B2 (en) * 2001-11-13 2006-01-17 Asustek Computer Inc. Robust RLC reset procedure in a wireless communication system
US20030206534A1 (en) 2002-05-03 2003-11-06 Wu Frank Chih-Hsiang Scheme to handle radio link control service data units upon reception of a radio link control reset or reset acknowledge protocol data unit in a wireless communication system
US7554963B2 (en) * 2002-08-13 2009-06-30 Innovative Sonic Limited Method for handling data discard timer after an RLC reset or re-establishment in a wireless communications system
US20040153896A1 (en) 2003-02-04 2004-08-05 Sung-Kyung Jang Failsafe RLC reset method for a wireless communication system
US20040208160A1 (en) * 2003-03-31 2004-10-21 Dragan Petrovic Method of retransmission protocol reset synchronisation
US20080101608A1 (en) * 2006-10-25 2008-05-01 Innovative Sonic Limited Method and apparatus for handling protocol error in a wireless communications system
US20090168751A1 (en) * 2007-12-31 2009-07-02 Samsung Electronics Co., Ltd. Method to prevent hyper frame number de-synchronization in a wireless communication system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
3GPP; "RLC Size Handling and RLC RE-Establishment" Ericcson, Qualcomm Europe; (3GPP TS 25.322 Version 5.7.0); May 2004; 10 pages.
3GPP; Universal Mobile Telecommunications System (UMTS); Radio Link Control (RLC) Protocol Specification (3GPP TS 25.322 Version 6.3.0 Release 6); Mar. 2005; 84 pages.
Argentina Office Action dated May 7, 2010; Argentina Application No. 06 01 02436, Motorola; "Substantive Examination".
CS26401RL Counterpart EPO Application No. 09008246.2; Extended European Search Report; Jun. 10, 2009; 9 pages. (Document XP-002313674).

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110009073A1 (en) * 2005-06-10 2011-01-13 Motorola, Inc. Establishing radio link control in wireless communication networks
US8483109B2 (en) * 2005-06-10 2013-07-09 Motorola Mobility Llc Establishing radio link control in wireless communication networks
US20070258489A1 (en) * 2006-05-03 2007-11-08 Innovative Sonic Limited Method and apparatus of handling variable of RLC reset procedure during receiver-side-only re-establishment in wireless communications system
US8179913B2 (en) * 2006-05-03 2012-05-15 Innovative Sonic Limited Method and apparatus of handling variable of RLC reset procedure during receiver-side-only re-establishment in wireless communications system
USRE48291E1 (en) * 2008-06-20 2020-10-27 Lg Electronics Inc. Method of delivering a PDCP data unit to an upper layer
US8902833B2 (en) 2010-12-23 2014-12-02 Qualcomm Incorporated System and method for performing a radio link control (RLC) reset in a downlink multipoint system

Also Published As

Publication number Publication date
FI123841B (fi) 2013-11-15
BRPI0610880A2 (pt) 2010-08-03
CN101204049A (zh) 2008-06-18
WO2006135482A1 (en) 2006-12-21
ES2393686T3 (es) 2012-12-27
EP2107851A2 (en) 2009-10-07
TWI387237B (zh) 2013-02-21
AR053897A1 (es) 2007-05-23
US20060281413A1 (en) 2006-12-14
TW201325126A (zh) 2013-06-16
TWI467953B (zh) 2015-01-01
EP2107851A3 (en) 2009-11-04
EP1894360A1 (en) 2008-03-05
EP2107851B1 (en) 2012-10-24
FI20060545A (fi) 2006-12-11
US20110009073A1 (en) 2011-01-13
US8483109B2 (en) 2013-07-09
FI20060545A0 (fi) 2006-06-02
CN101204049B (zh) 2012-09-12
TW200707949A (en) 2007-02-16

Similar Documents

Publication Publication Date Title
US7821975B2 (en) Establishing radio link control in wireless communication networks
US8897229B2 (en) Method and apparatus for delivery notification of non-access stratum retransmission
US7068636B2 (en) Method for determining RLC entity re-establishment during SRNS relocation
KR20130093774A (ko) Ｐｄｃｐ 패킷 전송 방법
EP2075942B1 (en) Method to prevent hyper frame number de-synchronization in a wireless communication system
AU2017262892B2 (en) System and method for maintaining synchronization in connectionless transmissions
US8295839B2 (en) Wireless communication method and apparatus for recovering data following a serving cell change based on a radio link control intelligence mode in effect
EP1816806A1 (en) Method of resetting radio link control entity in a mobile communications system and related apparatus

Legal Events

Date Code Title Description
AS Assignment

Owner name: MOTOROLA, INC., ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BURBIDGE, RICHARD C.;PUTCHA, PADMAJA;SUDINI, RAMESH;AND OTHERS;SIGNING DATES FROM 20050719 TO 20050721;REEL/FRAME:016618/0174

Owner name: MOTOROLA, INC., ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BURBIDGE, RICHARD C.;PUTCHA, PADMAJA;SUDINI, RAMESH;AND OTHERS;REEL/FRAME:016618/0174;SIGNING DATES FROM 20050719 TO 20050721

STCF Information on status: patent grant

Free format text: PATENTED CASE

AS Assignment

Owner name: MOTOROLA MOBILITY, INC, ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MOTOROLA, INC;REEL/FRAME:025673/0558

Effective date: 20100731

AS Assignment

Owner name: MOTOROLA MOBILITY LLC, ILLINOIS

Free format text: CHANGE OF NAME;ASSIGNOR:MOTOROLA MOBILITY, INC.;REEL/FRAME:029216/0282

Effective date: 20120622

FPAY Fee payment

Year of fee payment: 4

AS Assignment

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC, CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MOTOROLA MOBILITY LLC;REEL/FRAME:034371/0612

Effective date: 20141028

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552)

Year of fee payment: 8

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 12